What must be done when working traffic through a highway crossing?

When working traffic through a highway crossing, the critical requirement is to provide protection until the train has cleared the crossing. This ensures the safety of both the train and road traffic at the intersection. Trains can be very unpredictable and may approach crossings at high speeds, making it essential to control traffic effectively during their passage.

Providing protection means implementing measures such as flaggers, lights, or additional signage to alert drivers and pedestrians of an approaching train. Maintaining control of the traffic until the train has completely cleared the crossing helps prevent accidents and ensures all road users are adequately informed of the situation. This safety practice is vital for safeguarding lives and maintaining smooth operations in areas where rail and road traffic intersect.